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Semmy [17]
3 years ago
10

Kim is a forensic scientist. She has been asked to identify a chemical compound that was found at the scene of a crime. Which of

these pairs of properties would be most helpful in identifying the unknown compound?
A) color, mass

B) boiling point, volume

C) flammability, volume

D) melting point, reactivity with water

Plz answer this question quickly, it’s really important
Physics
2 answers:
sattari [20]3 years ago
8 0
D, melting point and reactivity/solubility in water!
Sphinxa [80]3 years ago
4 0

I believe the correct answer is D. melting point, reactivity with water.

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Hey! please help i’ll give brainliest!
Komok [63]

Question:

If you push a bowling ball and a golf ball with an equal force what will happen

Answer:

B)

Explanation:

Larger than the force used to push the object that has less mass. A golf ball and a bowling ball are moving at the same velocity. When gravity and air resistance are equal, the object has drawn its terminal velocity.

3 0
3 years ago
The total amount of force exerted on an object is called
ziro4ka [17]

Answer:

net force

Explanation:

net force is the total amount of force exerted on an object.

7 0
3 years ago
Find the ratio of the new/old periods of a pendulum if the pendulum were transported from earth to the moon, where the accelerat
vichka [17]
The period of a pendulum is given by
T=2 \pi  \sqrt{ \frac{L}{g} }
where L is the pendulum length and g is the gravitational acceleration.

We can write down the ratio between the period of the pendulum on the Moon and on Earth by using this formula, and we find:
\frac{T_m}{T_e} =  \frac{2 \pi  \sqrt{ \frac{L}{g_m} } }{2 \pi  \sqrt{ \frac{L}{g_e} } }=    \sqrt{ \frac{g_e}{g_m} }
where the labels m and e refer to "Moon" and "Earth".

Since the gravitational acceleration on Earth is g_e = 9.81 m/s^2 while on the Moon is g_m=1.63 m/s^2, the ratio between the period on the Moon and on Earth is
\frac{T_m}{T_e}= \sqrt{ \frac{g_e}{g_m} }= \sqrt{ \frac{9.81 m/s^2}{1.63 m/s^2} }=2.45

3 0
3 years ago
Discuss five occasions when people dance ​
Xelga [282]

Answer:

Party, Birthday, Weddings, Nightclub, Just for fun

7 0
3 years ago
You are working on charge-storage devices for a research center. Your goal is to store as much charge on a given device as possi
zheka24 [161]

Answer:

Part A the answer is the dielectric constant.

Part B  Mica- mylar- paper- quartz

Explanation:

The capacity of a capacitor is given by

           C = ε ε₀ A / d

Where the dielectric constant (ε) is the value of the material between the plates of the capacitor, we see that as if value increases the capacity also increases.

Another magnitude that we must take into account that the maximum working voltage, the greater the safer is the capacitor

the flexibility of the material must also be taken into account

Part A the answer is the dielectric constant.

Pate B order the materials from best to worst

Mica. The best ever

Mylar Flexible

Paper Low capacity, low working voltage, flexible

Quartz high dielectric, but brittle

8 0
3 years ago
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